Axial coordination of NHC ligands on dirhodium (II) complexes: Generation of a new family of catalysts

…, PMP Gois, LF Veiros, V André, MT Duarte…

文献索引：Trindade, Alexandre F.; Gois, Pedro M. P.; Veiros, Luis F.; Andre, Vania; Duarte, M. Teresa; Afonso, Carlos A. M.; Caddick, Stephen; Cloke, F. Geoffrey N. Journal of Organic Chemistry, 2008 , vol. 73, # 11 p. 4076 - 4086

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被引用次数: 65

摘要

An efficient new methodology for the arylation of aldehydes is disclosed which uses dirhodium (II) catalysts and N-heterocyclic carbene (NHC) ligands. Complexes of Rh2 (OAc) 4 with one and two NHCs attached on the axial positions were successfully isolated, fully characterized, and used as catalysts in the reaction. The saturated monocomplex ((NHC 5) Rh2 (OAc) 4) 31 was shown to be the most active catalyst and was particularly efficient in ...